#include <stdio.h>

int main(void)
{
    printf("\n");
    int n = 4;
    int m = 5;
    float f = 7.0F;
    float g = 8.0F;
    printf("%d\n", n, m);    /* 参数太多 */
    printf("%d %d %d\n", n); /* 参数太少 */
    printf("%d %d\n", f, g); /* 值的类型不匹配 */
    return 0;
}